A AegiFlow
CRITICALCVSS 9.8

CVE-2025-6424

CVE-2025-6424 updated by NVD

Modified
2026-10-25
Sources
nvd

Summary

A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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